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-   1999 to 2003 7.3L Power Stroke Diesel (http://forum.gopowerhungry.com/forumdisplay.php?f=25)
-   -   Cody's 2000 F250 build. (http://forum.gopowerhungry.com/showthread.php?t=5475)

cj45lc Wed, June 22nd, 2011 09:09 AM
Quote:
Originally Posted by cleatus12r (Post 48994)
The benefits of large nozzles.

Instead of injecting .16cc of fuel over 67 degrees of crank rotation at 2800 RPM (arbitrary number), it's possible to get the same amount of fuel in 50 degrees. This gives the fuel more time to burn completely before the exhaust valve opens.

I guess in the grand scheme of things though, that statement isn't entirely true. I only get about 2 milliseconds of actual "spray time" with my truck at the moment because my high pressure oil pump can't supply enough oil for more injector on-time (read: not really injecting the full capacity of fuel). The truck WILL smoke like a freight train (as evidenced in the first "all-out" dyno run I did with it) but it's horribly inefficient.
What size nozzles Cody, kinda wondering what would be good for mine with the stock turbo

cleatus12r Wed, June 22nd, 2011 09:18 AM
With a stock truck that's used for working/towing...stick with stock size nozzles. The ones I have on my truck currently are 100% over stock (hafta see how the truck tows 13-15K lbs. when I get home). I have a feeling it's going to suck.

907DAVE Wed, June 22nd, 2011 11:50 AM
I betcha its gonna be good once the tuning is right....not saying it isnt already....but mine towed real nice once they were dialed in.

cleatus12r Wed, June 22nd, 2011 11:59 AM
I'm not worried about the tuning. It's about dead-nuts now.

It's just the wonderful world of taking the reliability of a stock truck and modifying it......

You know what I'm talking about.

907DAVE Wed, June 22nd, 2011 12:11 PM
That's why my single cab is staying stock.....I dont want to even open the hood unless its for an oil change.

And watching the gauges like a hawk is not much fun either.

cleatus12r Wed, June 22nd, 2011 12:28 PM
That's why my 95 is staying stock.

I purchased this 2000 to be a "toy" anyway. A toy with a gooseneck ball in the bed.

cleatus12r Wed, June 22nd, 2011 12:30 PM
Quote:
Originally Posted by Lowdown89 (Post 49008)
When did y'all go to the track? We are thinking about coming down to run on a Friday night, be nice to get a few people together and go
Friday evening.......the 10th.

There are diesel drags on July 9th.

cj45lc Wed, June 22nd, 2011 01:09 PM
Thanks Cody, so the single shot w/stock nozzles is what I should be looking for

cleatus12r Wed, June 22nd, 2011 01:54 PM
That's what I recommend for everyone in your shoes, CJ.

On paper, the Stage 2 injectors 160/80 or 100% nozzles just aren't worth the trouble. You're either shooting for good numbers on stock high pressure oil (like the 160/0% injectors in Bill's red truck; 395 HP and still able to maintain 3000 PSI) for $1100 or you're looking at making more than 400 HP with the possibility of not needing an aftermarket high pressure pump (strong case for hybrids).

Stage 2's are just kind of....well.... outdated. They're pretty oil hungry and they don't have the fuel capacity for an easy 400+ HP.

cj45lc Wed, June 22nd, 2011 09:56 PM
Quote:
Originally Posted by cleatus12r (Post 49039)
That's what I recommend for everyone in your shoes, CJ.

On paper, the Stage 2 injectors 160/80 or 100% nozzles just aren't worth the trouble. You're either shooting for good numbers on stock high pressure oil (like the 160/0% injectors in Bill's red truck; 395 HP and still able to maintain 3000 PSI) for $1100 or you're looking at making more than 400 HP with the possibility of not needing an aftermarket high pressure pump (strong case for hybrids).

Stage 2's are just kind of....well.... outdated. They're pretty oil hungry and they don't have the fuel capacity for an easy 400+ HP.
Thanks Cody, the reliability is really what I'm after & the way I drive I've got plenty of power. I'm just trying to get a good idea of what I want to do as I've got 190k on the originals & I believe a couple are a little sticky.


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